Fix bug happen when select 2 folders with different type

sohstationviewer/controller/processing.py

@@ -7,7 +7,7 @@ import os
 import json
 import re
 from pathlib import Path
-from typing import List, Optional, Dict, Tuple
+from typing import List, Optional, Dict, Tuple, Union
 
 from PySide6.QtCore import QEventLoop, Qt
 from PySide6.QtGui import QCursor
@@ -167,7 +167,7 @@ def read_mseed_channels(tracking_box: QTextBrowser, list_of_dir: List[str],
     return channel_info
 
 
-def detect_data_type(list_of_dir: List[str]) -> Optional[str]:
+def detect_data_type(list_of_dir: List[Union[str, Path]]) -> Optional[str]:
     """
     Detect data type for the given directories using get_data_type_from_file
     :param list_of_dir: list of directories selected by users
@@ -183,6 +183,10 @@ def detect_data_type(list_of_dir: List[str]) -> Optional[str]:
     dir_data_type_dict = {}
     is_multiplex_dict = {}
     for d in list_of_dir:
+        try:
+            d = d.as_posix()
+        except AttributeError:
+            pass
         data_type = "Unknown"
         is_multiplex = None
         for path, subdirs, files in os.walk(d):